A conveying device for loading a fly ash tank car

By designing ash storage tanks, ash inlets, observation ports, and blowing mechanisms on ash transport tankers, and using high-pressure nitrogen to assist blowing, the problems of dust generation and blockage during the loading and unloading of fly ash in ash transport tankers have been solved, achieving safe and efficient fly ash transportation.

CN118255179BActive Publication Date: 2026-06-30XINXING DUCTILE IRON PIPES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XINXING DUCTILE IRON PIPES CO LTD
Filing Date
2024-03-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, dust is easily generated when loading and unloading fly ash in ash tank trucks, which can lead to the risk of explosion and combustion. In addition, the pipelines are easily blocked by fly ash, which affects the operation of dust removal equipment and is time-consuming and labor-intensive to clean.

Method used

A conveying device for loading fly ash tankers was designed, including an ash storage tank, an ash inlet, an observation port, a conveying pipe, and an auxiliary blowing mechanism. High-pressure nitrogen is used to assist in blowing to prevent blockage and to directly convey fly ash into the ash storage tank, preventing dust and pollution.

Benefits of technology

It effectively reduces the risk of dust generation during fly ash loading and unloading, increases conveying speed, prevents pipeline blockage, reduces environmental pollution, and simplifies the cleaning process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN118255179B_ABST
    Figure CN118255179B_ABST
Patent Text Reader

Abstract

This invention provides a conveying device for loading fly ash into a ash storage tank, belonging to the field of environmental protection technology. It includes an ash storage tank with an ash inlet and an observation port. A conveying pipe is detachably connected to the ash inlet, and an ash feed pipe is located at the end of the conveying pipe furthest from the ash storage tank. An auxiliary blowing mechanism is provided between the ash feed pipe and the conveying pipe. The auxiliary blowing mechanism includes a connector between the ash feed pipe and the conveying pipe, with a main auxiliary blowing pipe above the connector. One end of the main auxiliary blowing pipe has a gas storage tank, and the other end has a first connecting pipe detachably connected to the observation port. The first connecting pipe is connected to the connector via a second connecting pipe. In this invention, the conveying pipe is used to transport fly ash from the ash silo to the ash storage tank, and the auxiliary blowing mechanism assists in the transport of fly ash in the conveying pipe, preventing blockage.
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Description

Technical Field

[0001] This invention belongs to the field of environmental protection technology, and particularly relates to the field of environmental dust removal technology, specifically to a conveying device for loading ash tank trucks. Background Technology

[0002] Currently, fly ash in the ash storage mainly relies on semi-trailer trucks for external sales and transportation. Each truck needs to be equipped with a feed inlet for loading and unloading ash. Dust is generated during the loading and unloading process. The dust can easily accumulate in the enclosed space inside the truck and cause a risk of explosion. Therefore, an observation port needs to be opened on the truck to allow the dust to escape. Dust easily escapes from the observation port at the front of the truck when it is being loaded, causing environmental pollution.

[0003] Furthermore, when existing dust collection devices are used to collect dust at the observation port, they are prone to causing dust to accumulate and harden inside the dust collection pipe, clogging the dust collection pipe and affecting the operation of the dust removal equipment. When the dust collection pipe is blocked by accumulated dust, it cannot provide negative pressure to the tanker truck, which can easily cause dust to rise and pollute the environment. Cleaning and unblocking the pipe requires cutting the pipe open and manually cleaning the accumulated dust, which is time-consuming and labor-intensive. Summary of the Invention

[0004] This invention addresses the problem of potential deflagration hazards caused by smoke and dust generated during the loading and unloading of fly ash in existing technologies, and also solves the problem of pipelines being easily blocked by fly ash in existing technologies. It provides a conveying device for loading fly ash tank trucks. The conveying pipe in this invention is used to transport fly ash from the ash silo to the ash storage tank, and the blowing mechanism is used to assist in the conveying of fly ash in the conveying pipe and prevent the conveying pipe from being blocked.

[0005] The technical solution adopted by the conveying device for loading ash tank trucks of the present invention is as follows:

[0006] This invention provides a conveying device for loading ash tank trucks, including an ash storage tank, an ash inlet and an observation port on the ash storage tank, a conveying pipe detachably connected to the ash inlet, and an ash inlet pipe at the end of the conveying pipe away from the ash storage tank; wherein, an auxiliary blowing mechanism is provided between the ash inlet pipe and the conveying pipe.

[0007] The blowing mechanism includes a connector located between the ash inlet pipe and the conveying pipe. A main blowing pipe is located above the connector. One end of the main blowing pipe is equipped with a gas storage tank for storing nitrogen. The other end of the main blowing pipe is equipped with a first connecting pipe that is detachably connected to the observation port. The first connecting pipe is connected to the connector through a second connecting pipe.

[0008] In this further technical solution, the ash inlet pipe is located inside the ash silo, and the conveying pipe is connected to the ash inlet of the ash storage tank. The fly ash in the ash silo is conveyed to the ash storage tank through the ash inlet pipe and the conveying pipe. Since the fly ash is directly conveyed to the ash storage tank through the conveying pipe, the dust generated during the loading and unloading of fly ash can be effectively reduced, thereby reducing the risk of deflagration. Through the set blowing mechanism, high-pressure nitrogen can be conveyed into the conveying pipe when the fly ash is conveyed. The nitrogen carries the fly ash along the conveying pipe to the ash storage tank, which can improve the conveying speed of fly ash on the one hand, and prevent fly ash from clogging the conveying pipe on the other hand. At the same time, the fly ash that comes out from the observation port can be conveyed back to the ash storage tank through the first connecting pipe, the second connecting pipe, the connector and the conveying pipe to prevent air pollution.

[0009] Furthermore, a first flange is fixedly installed at the ash inlet, an ash outlet is installed at the end of the conveying pipe away from the ash inlet, and a second flange that mates with the first flange is installed at the end of the ash outlet away from the conveying pipe.

[0010] In this further technical solution, the second flange enables a detachable connection between the ash discharge pipe and the ash storage tank; at the same time, the first flange and the second flange seal the ash discharge pipe and the ash storage tank together, so that the fly ash is directly transported into the ash storage tank when transporting fly ash, preventing fly ash from leaking outside the ash storage tank and causing air pollution.

[0011] Furthermore, the main blowing pipe is equipped with a winch mechanism for driving the ash discharge pipe and the first connecting pipe to move up and down.

[0012] In this further technical solution, the hoisting mechanism can drive the ash discharge pipe and the first connecting pipe downward when fly ash needs to be loaded, so that the ash discharge pipe is connected to the ash inlet and the first connecting pipe is connected to the observation port; when the ash storage tank is full, the hoisting mechanism can move the ash discharge pipe and the first connecting pipe upward, so that the ash discharge pipe and the first connecting pipe are separated from the ash storage tank, thereby facilitating the movement and transportation of the ash storage tank.

[0013] Furthermore, a first conveying hose is installed between the ash discharge pipe and the conveying pipe.

[0014] In this further technical solution, the first conveying hose is designed to facilitate the up-and-down movement of the ash discharge pipe.

[0015] Furthermore, the main blowing pipe is connected to the connector through the first blowing branch pipe. A first check valve is installed inside the connector near the ash inlet pipe, and the opening direction of the first check valve is towards the conveying pipe.

[0016] In this further technical solution, by setting a first auxiliary blowing main pipe and a first one-way valve, the flow direction of nitrogen can be made as auxiliary blowing main pipe → first auxiliary blowing branch pipe → connector → conveying pipe → ash outlet pipe. The rapid flow of nitrogen in the conveying pipe will reduce the pressure in the conveying pipe, thereby causing the first one-way valve to open in the direction of the conveying pipe under the action of pressure difference. At this time, external air enters into the ash inlet pipe, thereby driving the fly ash through the ash inlet pipe into the connector. The fly ash in the connector is conveyed to the ash storage tank under the action of nitrogen.

[0017] Furthermore, the first blasting branch pipe is equipped with a first ball valve.

[0018] In this further technical solution, the flow rate of nitrogen entering the first purging branch pipe can be controlled by setting a first ball valve.

[0019] Furthermore, the main blowing pipe is connected to the first connecting pipe through the second blowing branch pipe, and a second one-way valve is installed inside the first connecting pipe, with the opening direction of the second one-way valve facing the second blowing branch pipe.

[0020] In this further technical solution, by setting a second auxiliary blowing main pipe and a second one-way valve, the flow direction of nitrogen can be made as auxiliary blowing main pipe → second auxiliary blowing branch pipe → second connecting pipe → connector → conveying pipe. The rapid flow of nitrogen in the second auxiliary blowing branch pipe and the second connecting pipe will reduce the internal pressure, thereby causing the second one-way valve to open in the direction of the second auxiliary blowing branch pipe under the action of pressure difference. At this time, the fly ash that comes out from the observation port enters the second connecting pipe through the first connecting pipe and is finally transported back to the ash storage tank, thereby preventing the fly ash that comes out from the observation port from drifting into the air and causing pollution.

[0021] Furthermore, the second bleed-aid branch pipe is equipped with a second ball valve.

[0022] In this further technical solution, the flow rate of nitrogen entering the second purging branch pipe can be controlled by setting a second ball valve.

[0023] Furthermore, the first connecting pipe is connected to the second connecting pipe via the second conveying hose. One end of the second connecting pipe is connected to the end of the connector away from the ash inlet pipe, and the other end of the second connecting pipe is connected to one end of the second conveying hose. The other end of the second conveying hose is connected to one end of the first connecting pipe.

[0024] In this further technical solution, the second delivery hose facilitates the up-and-down movement of the first connecting pipe.

[0025] Furthermore, the ash storage tank is equipped with an air outlet pipe, a filter screen is installed inside the air outlet pipe, and a pressure relief valve is installed at the end of the air outlet pipe away from the ash storage tank; wherein, the air outlet pipe is connected to the air storage tank through an air supply pipe.

[0026] In this further technical solution, the entry of nitrogen into the ash storage tank will increase the pressure inside the ash storage tank, thereby opening the pressure relief valve. The nitrogen that has entered the ash storage tank will re-enter the gas storage tank through the gas outlet pipe and the gas transmission pipe. When the nitrogen passes through the gas outlet pipe, the filter screen will filter the fly ash carried by the nitrogen to prevent fly ash from entering the gas storage tank.

[0027] The beneficial effects of this invention are:

[0028] 1. In this ash transport tanker loading and conveying device, the ash inlet pipe is located inside the ash silo, and the conveying pipe is connected to the ash inlet of the ash storage tank. The fly ash in the ash silo is conveyed to the ash storage tank through the ash inlet pipe and the conveying pipe. Since the fly ash is directly conveyed to the ash storage tank through the conveying pipe, the dust generated during the loading and unloading of fly ash can be effectively reduced, thereby reducing the risk of deflagration. Through the set blowing mechanism, high-pressure nitrogen can be conveyed into the conveying pipe when the fly ash is conveyed. The nitrogen carries the fly ash along the conveying pipe to the ash storage tank. On the one hand, it can improve the conveying speed of fly ash, and on the other hand, it can prevent fly ash from clogging the conveying pipe. At the same time, the fly ash that comes out from the observation port can be conveyed back to the ash storage tank through the first connecting pipe, the second connecting pipe, the connector and the conveying pipe to prevent air pollution.

[0029] 2. In the conveying device for loading the ash tanker, the second flange enables a detachable connection between the ash discharge pipe and the ash storage tank; at the same time, the first and second flanges seal the ash discharge pipe and the ash storage tank together, so that the fly ash is directly transported into the ash storage tank when transporting fly ash, preventing fly ash from leaking outside the ash storage tank and causing air pollution.

[0030] 3. In the conveying device for loading the ash tanker, the hoisting mechanism can drive the ash discharge pipe and the first connecting pipe downward when it is necessary to load fly ash, so that the ash discharge pipe is connected to the ash inlet and the first connecting pipe is connected to the observation port; when the ash storage tank is full, the hoisting mechanism can move the ash discharge pipe and the first connecting pipe upward, so that the ash discharge pipe and the first connecting pipe are separated from the ash storage tank, thereby facilitating the movement and transportation of the ash storage tank.

[0031] 4. In the conveying device for loading the ash tanker, the entry of nitrogen into the ash storage tank will increase the pressure inside the ash storage tank, thereby opening the pressure relief valve. The nitrogen that entered the ash storage tank will re-enter the gas storage tank through the gas outlet pipe and the gas delivery pipe. When the nitrogen passes through the gas outlet pipe, the filter screen will filter the fly ash carried by the nitrogen to prevent fly ash from entering the gas storage tank. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a conveying device for loading ash tank trucks provided in an embodiment of the present invention;

[0033] Figure 2This is a schematic diagram of the structure of an ash storage tank for a conveying device used for loading ash tank trucks, provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of a conveying device for loading ash tank trucks, provided in an embodiment of the present invention.

[0035] In the attached diagram: 1. Ash storage tank; 2. Ash inlet; 3. Observation port; 4. Conveying pipe; 5. Ash inlet pipe; 6. Auxiliary blowing mechanism; 7. Connector; 8. Main auxiliary blowing pipe; 9. Air storage tank; 10. First connecting pipe; 11. Second connecting pipe; 12. First flange; 13. Ash outlet pipe; 14. Second flange; 15. Hoisting mechanism; 16. First conveying hose; 17. First auxiliary blowing branch pipe; 18. First check valve; 19. First ball valve; 20. Second auxiliary blowing branch pipe; 21. Second check valve; 22. Second ball valve; 23. Second conveying hose; 24. Air outlet pipe; 25. Pressure relief valve; 26. Air supply pipe; 27. Third flange; 28. Fourth flange; 29. ​​Connecting plate; 30. Steel wire rope; 31. Fifth flange; 32. Sixth flange. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this invention.

[0037] Example 1

[0038] First refer to Figure 1 ,according to Figure 1 As can be seen, the present invention includes an ash storage tank 1 for loading and transporting fly ash, which can be installed on a motor vehicle to form a suction and discharge tanker truck commonly used in the prior art; Continuing to refer to Figure 1 The present invention includes a conveying pipe 4 for conveying fly ash into an ash storage tank 1. The conveying pipe 4 is detachably connected to the ash storage tank 1, and an ash inlet pipe 5 is provided at the end of the conveying pipe 4 away from the ash storage tank 1. The ash inlet pipe 5 is located in the ash silo. The fly ash in the ash silo is conveyed to the ash storage tank 1 through the ash inlet pipe 5 and the conveying pipe 4. In order to prevent fly ash from clogging the ash inlet pipe 5 or the conveying pipe 4 during the conveying process, the present invention also includes a blowing mechanism 6. High-pressure nitrogen gas is introduced into the conveying pipe 4 through the blowing mechanism 6. The nitrogen gas drives the fly ash to be conveyed into the ash storage tank 1. On the one hand, it can prevent the ash inlet pipe 5 or the conveying pipe 4 from being blocked, and on the other hand, it can accelerate the conveying speed of fly ash.

[0039] The specific configuration of the ash storage tank 1 in this invention can be referenced from [the relevant documentation]. Figure 2 ,according to Figure 2It can be seen that the ash storage tank 1 has an ash inlet 2 and an observation port 3 arranged side by side. The ash inlet 2 is fixedly connected to the first flange 12, and the observation port 3 is fixedly connected to the third flange 27.

[0040] The blowing mechanism 6 in this invention can be specifically configured as follows: Figure 3 ,according to Figure 3 It is known that the blowing mechanism 6 includes a connector 7 disposed between the ash inlet pipe 5 and the conveying pipe 4. The ash inlet pipe 5 and the conveying pipe 4 are connected through the connector 7. A first one-way valve 18 is fixedly connected to one end of the connector 7 near the ash inlet pipe 5. The opening direction of the first one-way valve 18 is towards the conveying pipe 4. A first conveying hose 16 is fixedly connected to one end of the conveying pipe 4 away from the connector 7. An ash outlet pipe 13 is fixedly connected to one end of the first conveying hose 16 away from the conveying pipe 4. A second flange 14 that mates with the first flange 12 is fixedly connected to one end of the ash outlet pipe 13 away from the first conveying hose 16.

[0041] Continue to refer to Figure 3 The blowing mechanism 6 also includes a gas storage tank 9 for storing high-pressure nitrogen. The gas storage tank 9 can be installed in a suitable location inside or on top of the ash silo. The gas storage tank 9 is fixedly connected to a main blowing pipe 8, which is connected to a connector 7 via a first blowing branch pipe 17. A first ball valve 19 is fixedly connected between the first blowing branch pipe 17 and the main blowing pipe 8. (Continue to refer to...) Figure 1 and Figure 3 The observation port 3 is detachably connected to a first connecting pipe 10. To facilitate the detachable connection between the first connecting pipe 10 and the observation port 3, one end of the first connecting pipe 10 connected to the observation port 3 is fixedly connected to a fourth flange 28 that mates with the third flange 27. The other end of the first connecting pipe 10 is connected to the main blowing pipe 8 via a second blowing branch pipe 20. Specifically, the second blowing branch pipe 20 and the first connecting pipe 10 are connected via a second ball valve 22. (Continue to refer to...) Figure 3 A second one-way valve 21 is fixedly connected inside the first connecting pipe 10. The opening direction of the second one-way valve 21 is towards the second blowing branch pipe 20. The part of the first connecting pipe 10 located above the second one-way valve 21 is fixedly connected to the second connecting pipe 11. Specifically, the second connecting pipe 11 is connected to the first connecting pipe 10 through the second delivery hose 23. The end of the second connecting pipe 11 away from the second delivery hose 23 is connected to the connector 7.

[0042] Continue to refer to Figure 1 and Figure 3In this invention, a winch mechanism 15 is fixedly connected to the blowing main pipe 8. The winch mechanism 15 is connected to the ash discharge pipe 13 and the first connecting pipe 10 via a wire rope 30. Specifically, the ash discharge pipe 13 and the first connecting pipe 10 are connected together via a connecting plate 29. The wire rope 30 is connected to the connecting plate 29. By driving the connecting plate 29 to move up and down, the ash discharge pipe 13 and the first connecting pipe 10 can be driven to move up and down.

[0043] The working principle of the conveying device for loading fly ash tanker truck is as follows: When it is necessary to load fly ash, the ash storage tank 1 is first moved to the bottom of the ash discharge pipe 13 and the first connecting pipe 10, and the ash inlet 2 is aligned with the ash discharge pipe 13 and the observation port 3 is aligned with the first connecting pipe 10. Then, the ash discharge pipe 13 and the first connecting pipe 10 are moved downward by the hoisting mechanism 15 until the first flange 12 and the second flange 14, the third flange 27 and the fourth flange 28 come into contact. Then, the first flange 12 and the second flange 14, the third flange 27 and the fourth flange 28 are fixedly connected together by bolts.

[0044] Then, the end of the ash inlet pipe 5 away from the first ball valve 19 is aligned with the fly ash in the ash silo. High-pressure nitrogen is then injected into the first auxiliary blowing branch pipe 17 through the first ball valve 19. Under the action of the first one-way valve 18, the high-pressure nitrogen flows sequentially along the connector 7 → conveying pipe 4 → first conveying hose 16 → ash outlet pipe 13. The rapid flow of nitrogen will reduce the pressure in the pipeline, thereby causing the first one-way valve 18 to open in the direction of the conveying pipe 4 under the action of the pressure difference. At this time, the external air will carry the fly ash through the ash inlet pipe 5 into the connector 7. The fly ash in the connector 7 is then rapidly transported to the ash storage tank 1 under the action of nitrogen.

[0045] When fly ash enters the ash storage tank 1, dust inevitably rises. The dust rises from the observation port 3. At this time, high-pressure nitrogen is injected into the second auxiliary blowing branch pipe 20 through the second ball valve 22. Under the action of the second one-way valve 21, the nitrogen in the second auxiliary blowing branch pipe 20 flows in the direction of second auxiliary blowing branch pipe 20 → second connecting pipe 11 → connector 7 → conveying pipe 4. The rapid flow of nitrogen in the second auxiliary blowing branch pipe 20 and the second connecting pipe 11 will reduce the pressure inside the pipe. As a result, under the action of pressure difference, the second one-way valve 21 opens in the direction of the second auxiliary blowing branch pipe 20. At this time, the fly ash rising from the observation port 3 enters the second connecting pipe 11 through the first connecting pipe 10 and is finally transported back to the ash storage tank 1, thereby preventing the fly ash rising from the observation port 3 from drifting into the air and causing pollution.

[0046] After the fly ash in the ash storage tank 1 is loaded, the screws between the first flange 12, the second flange 14, the third flange 27 and the fourth flange 28 are removed. Then, the hoisting mechanism 15 drives the ash discharge pipe 13 and the first connecting pipe 10 to move upward, thereby separating the ash discharge pipe 13 and the first connecting pipe 10 from the ash storage tank 1, which facilitates the movement of the suction and discharge tanker truck.

[0047] Meanwhile, in order to facilitate the movement of the ash inlet pipe 5 and align it with the fly ash, and to facilitate the up-and-down movement of the first connecting pipe 10, the ash inlet pipe 5 and the second auxiliary blowing branch pipe 20 in this invention are also conveying hoses.

[0048] Example 2

[0049] Example 2 is based on Example 1, with a fixed connecting vent pipe 24 on the ash storage tank 1.

[0050] refer to Figure 2 In the specific installation of the vent pipe 24, the end of the vent pipe 24 away from the ash storage tank 1 is fixedly connected to a fifth flange 31, a filter screen for filtering fly ash (not shown in the figure) is fixedly connected inside the vent pipe 24, and a pressure relief valve 25 is fixedly connected inside the vent pipe 24 above the filter screen.

[0051] Continue to refer to Figure 3 The gas storage tank 9 is fixedly connected to an L-shaped gas supply pipe 26, and a third one-way valve (not shown in the figure) is fixedly connected inside the gas supply pipe 26. The opening direction of the third one-way valve is towards the gas storage tank 9. A sixth flange 32 that cooperates with the fifth flange 31 is fixedly connected to the end of the gas supply pipe 26 away from the gas storage tank 9.

[0052] The working principle of the conveying device for loading fly ash tanker truck is as follows: Based on the first embodiment, when loading fly ash, the air outlet pipe 24 is aligned with the air delivery pipe 26. At this time, the fifth flange 31 and the sixth flange 32 are connected together, and then the fifth flange 31 and the sixth flange 32 are fixedly connected together by bolts.

[0053] When fly ash is loaded into the ash storage tank 1, the nitrogen entering the ash storage tank 1 will increase the pressure inside the ash storage tank 1, thereby opening the pressure relief valve 25. The nitrogen entering the ash storage tank 1 will re-enter the gas storage tank 9 through the gas outlet pipe 24 and the gas transmission pipe 26. When the nitrogen passes through the gas outlet pipe 24, the filter screen will filter the fly ash carried by the nitrogen to prevent the fly ash from entering the gas storage tank 9.

[0054] In the above embodiments, the present invention provides a conveying device for loading ash tank trucks. In the present invention, the ash inlet pipe is located inside the ash silo, and the conveying pipe is connected to the ash inlet of the ash storage tank. The fly ash in the ash silo is conveyed to the ash storage tank through the ash inlet pipe and the conveying pipe. Since the fly ash is directly conveyed to the ash storage tank through the conveying pipe, the dust generated during the loading and unloading of fly ash can be effectively reduced, thereby reducing the risk of deflagration. Through the set blowing mechanism, high-pressure nitrogen can be conveyed into the conveying pipe when the fly ash is conveyed. The nitrogen carries the fly ash along the conveying pipe to the ash storage tank. On the one hand, it can improve the conveying speed of fly ash, and on the other hand, it can prevent fly ash from clogging the conveying pipe. At the same time, the fly ash that comes out from the observation port can be conveyed back to the ash storage tank through the first connecting pipe, the second connecting pipe, the connector and the conveying pipe to prevent air pollution.

[0055] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the inventive concept should fall within the protection scope of the present invention. All technical contents for which protection is sought in this invention are fully described in the claims.

Claims

1. A conveying device for loading a fly ash tank car, comprising a fly ash storage tank (1) having a fly ash inlet (2) and an observation port (3) formed therein, characterized in that: The ash inlet (2) is detachably connected to a conveying pipe (4), and an ash inlet pipe (5) is provided at one end of the conveying pipe (4) away from the ash storage tank (1); wherein, an auxiliary blowing mechanism (6) is provided between the ash inlet pipe (5) and the conveying pipe (4); The blowing mechanism (6) includes a connector (7) disposed between the ash inlet pipe (5) and the conveying pipe (4). A blowing main pipe (8) is disposed above the connector (7). A gas storage tank (9) for storing nitrogen is disposed at one end of the blowing main pipe (8). A first connecting pipe (10) is disposed at the other end of the blowing main pipe (8) and is detachably connected to the observation port (3). The first connecting pipe (10) is connected to the connector (7) through a second connecting pipe (11). The main blowing pipe (8) is connected to the connector (7) through the first blowing branch pipe (17). A first one-way valve (18) is provided in the connector (7) near the ash inlet pipe (5). The opening direction of the first one-way valve (18) is towards the conveying pipe (4). The main blowing pipe (8) is connected to the first connecting pipe (10) through the second blowing branch pipe (20), and the first connecting pipe (10) is provided with a second one-way valve (21), the opening direction of the second one-way valve (21) is towards the second blowing branch pipe (20); The first connecting pipe (10) is connected to the second connecting pipe (11) through the second conveying hose (23). One end of the second connecting pipe (11) is connected to the end of the connector (7) away from the ash inlet pipe (5). The other end of the second connecting pipe (11) is connected to one end of the second conveying hose (23). The other end of the second conveying hose (23) is connected to one end of the first connecting pipe (10). The ash storage tank (1) is provided with an air outlet pipe (24), a filter screen is provided inside the air outlet pipe (24), and a pressure relief valve (25) is provided at the end of the air outlet pipe (24) away from the ash storage tank (1); wherein, the air outlet pipe (24) is connected to the gas storage tank (9) through a gas transmission pipe (26).

2. A conveying device for loading a lime truck according to claim 1, characterized in that: The ash inlet (2) is fixedly provided with a first flange (12), and the end of the conveying pipe (4) away from the ash inlet pipe (5) is provided with an ash outlet pipe (13). The end of the ash outlet pipe (13) away from the conveying pipe (4) is provided with a second flange (14) that cooperates with the first flange (12).

3. A conveying device for loading a lime truck according to claim 2, characterized in that: The blowing tube (8) is equipped with a winch mechanism (15) for driving the ash discharge tube (13) and the first connecting tube (10) to move up and down.

4. The conveying device for loading ash tank trucks according to claim 2, characterized in that: A first conveying hose (16) is provided between the ash discharge pipe (13) and the conveying pipe (4).

5. The conveying device for loading ash tank trucks according to claim 1, characterized in that: The first blowing branch pipe (17) is equipped with a first ball valve (19).

6. The conveying device for loading ash tank trucks according to claim 1, characterized in that: The second blowing branch pipe (20) is equipped with a second ball valve (22).